Aug

7

 A rich assemblage of life is able to survive tenaciously in severe environments such as the deep sea or around hydrothermal vents. Perhaps within the next couple of years (given the number of probes being sent) we will find that life exists or has existed on Mars. If you can make it there you can make it anywhere.

It has been said that fossils offer tantalizing suggestions that life developed near deep-sea hydrothermal vents and not in shallow seas, as other evidence hints.

Although life is very sparse at these depths, black smokers are the center of entire ecosystems. Sunlight is nonexistent, so many organisms such as archaea and extremophiles must convert the heat, methane, and sulfur compounds provided by black smokers into energy through a process called chemosynthesis.


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